Most Smart Watches end up in a drawer due to poor battery life. If you forget to charge it daily it's a useless piece of technology. There have been a few devices that offer better battery life, but it usually comes a big loss of functionality and performance. Amazfit's Bip looks like an Apple Watch and it comes with 30 days of on a single charge, or better yet, 45 days with "minimal" notifications. For the price of $99, it's an incredible deal.

The Bip is not a hybrid watch or a stripped down device, either: it has a 1.28-inch touchscreen display, an optical heart rate sensor, true GPS for location tracking, a 3-axis accelerometer, IP68-rated water resistance, and notification support from both Android and iOS devices. The company says that the watch can reach 30 days on a single charge, and up to 45 days with “minimal notifications.”Source: TheVerge